Glass-feeding mechanism



Dec. 8,1925. 1,564,909

T. 6. STEIMER GLASS FEEDING MECHANISM Original Filed Feb. 12, 1910 3Sheets-Sheet 1 a 1mm 1 H01,

Charles M Steimer Ewcalnr of T keodore 6'. Steimer Dec. 8, 1925- T. C.STEIMER GLASS FEEDING MECHANISM Original Filed Feb, .12, 1910 sSheets-Sheet I 2 1 gvvuenfoz Ckarlesffifieimer Erecuzor ofT/zeodoreCSZeimer Dec. 8, 1925- T. c. STEIMER GLASS FEEDING MECHANISMOriginal Fiied Feb. 12, 1910 S'Sheets-Sheet s snow: for,

Charles/1.53am? Executor of T/Zeodone 0.52am;-

Patented Dec. 8, 1925.

UNITED STATES PATENT OFFICE,

THEODORE C. STEIMER, DECEASED, LATE OF PITTSBURGH, PENNSYLVANIA; BY

CHARLES M. STEIMER, EXECUTOR, OF Z ANESVILLE, OHIO, ASSIGNOR, BY MESNE IASSIGNMENTS, TOHARTFORD-EMPIRE COMPANY, A CORPORATION OF DELAWARE;

GLASS-FEEDING MECHANISM.

Original application filed February 12, 1910, Serial No. 543,582.Divided and this application iiled December 31, 1324.

To all whom it may concern:

Be it known that THEODORE CQ-STEIMER, deceased, a citizen of the UnitedStates of America, who resided .in the city of Pittsburgh, in the countyof Allegheny and State of Pennsylvania, did during his lifetime inventcertain new and useful Improvements in Glass-Feeding Mechanism, forwhich he filed an application in the United States Patent Office, No.543,582, on the 12th day of February, 1910, of which application this isa divisional filed for the purpose of' specifically claiming certainfeatures therein set forth.

The invention herein claimed relates to the art of feeding lass for themanufacture of pressed or blown articles, such as tableware and thelike. The primary objects are to provide eflicient means for regulatingthe size and weight of the articles and to provide for continuouslyfeeding charges for pressing or blowing machine molds or blanks, andother specific improvements, which will hereinafter appear.

Referring to the accompanying drawings which are a part of those filedin the original application aforesaid, and which show, in addition tothe features herein claimed, certain matters to be claimed in theaforesaid original application, V

Figure 1 is a central vertical section of a furnace, showing a fullcharge of molten glass therein, also the delivery pot, as invented byTHEODORE C. STEIMER and a side elevation of a suitable pressing machine.

Figure 2 is a diagrammatic side view thereof partly in el'evatiorrandpartly in section, showing the delivery of a charge of glass.

Figure 3 is a detail of mechanism for operating the tilting ofthefurnace.

Figure 4 is a partial side elevation and a partial section showing themechanism for measuring the glass and feeding the molds, the sectionbeing taken partly on the line (13) in Figure 5.

Figure 5 is a section on the line (14) of Figure 4, and elevation of adifferent view of the same mechanism.

Figure 6 is aplan view of the uring and feeding pot.

Figure 7 is a side elevation of the meltglass measing and pouringfurnace, tilted in position Serial No. 759,172.

to entirely empty its charge, showing also parts of the pressingmachine.

First, to briefly explain the general nature of the invention, I referto the drawings wherein I present an apparatus ineluding a melting anddelivering furnace 3O WhlCh is pivoted at 31 and pours out the .glassconstantly at a fixed head. The glass flows in an unbroken stream intothe interrupter chamber 45, where, by means of a reciprocating plunger58 it is divided up into charges which are delivered through the funnel63 into a. series of molds M, where each charge of glass isautomatically pressed and delivered as shown at'T in completed form.

On a frame 25 of any suitable construction, I provide a stationarybearing 26 and a movable bearing 32 to carry the furnace. All theoperations necessar to move the furnace are provided for y a shaft 27driven. by a gear 28 and ratchet arm 29 of the furnace engaging amovable trunnioned nut 33 riding on a pivoted screw 34 which has abearingin the frame 25 and is rotated slowly and intermittently bygearing 35 and 36 from the shaft 27.

The interior construction of the furnace is peculiar; the melting pot 37as seen inFigure 1 is of wedge shape, with vertical sides, so that asthe furnace is tipped about its. ivot ing polnt which corresponds withthe line of the pouring mouth 38,-the glass is always poured from thesame level and from exactly the same position in the furnace. That-is,the pouring point is immovablev and the whole body of the glass movesaround it as a center. By this means I am enabled to drain off" the,entire charge of glass, leaving no residue to mix" with a new charge,

- that the form of piping 42 The pouring of the glass from the furnace30, accomplished by the slow revolution of shaft 27 and screw 34, isbrought about by the reciprocating movement of arm 29,

which as will be seen in Figure 3 is provided with a dog or ratchet 41,moved intermittently and moved any desired distance to regulate the flowof glass, hy means of link 29 engaging an adjustable Wrist-pin 42 set ina revolving wheel 43, geared up as will be obvious from Figure 7, withthe main power shaft P. That is, by attachment to a continuallyrotating'element, the dog and circular rack just described will slowlyand continuously tip the furnace about its pouring spout as an axis, soas to deliver a continuous stream of glass at the exact rate required.The ad'ustment is made without stopping the mac ine. The glass is alwaysunder the same conditions of temperature, pressure head, movement, etc.,and the entire charge of the furnace is used The stream of glass,protected by the hood 44 flows into the interrupter chamber 45 shown indetail in Figures 1, 4, 5 and 6.

This chamber 45 has the doublepurpose of housing the regulating pot andplunger,

and of keeping the glass uniformly at the correct temperature. Insidethe chamber 45, Iprovide a pot 46 having the peculiar form shown inFigs. 4 and 5, so that a gas dame introduced thereunder by a burner 47reverberates around the pot 46 and at the same time assists the plungerin its functions as hereafter described. Referring to Figs. 4 and 5especially, it will be understood that the shaft 48 may be connected upas by a. gear 49 at the right of Figure 7, with the main power shaft P;and on the shaft 48 is a cam 50 which reciprocates an arm 51 pivoted at52 to any convenient part of the frame of the machine. This arm 51 has abearing portion 51 which is adjustable in position by screw 51 so as toregulate the throw of the connected vertical reciproeating link 53,imparting motion to a frame 54 which slides in a vertical guide 55. Onthis frame the plunger is mounted with various adjustments as shown, bymeans of the supporting arm 56 having a ring 57 to hold the plunger 58.This plunger has a conical end which just fits a conical outlet 59 inthe pot 46, so that when the plunger is down it approaches closer to thesurface of the opening 59 and stops the flow of glass through the same.It will be understood that the.

downward motion of this plunger 58 ends at The pot 46 is seated on anupwardly p'rojecting boss 60 in the chamber 45, and this boss isprovided with several radial slots 61 through which a fine flameconstantly plays immediately under the outlet of the opening 59.. Theseveral jets of flame are projecte towarda common center and have theeffect of completely melting and cutting off the charge of glassdelivered by the rising and falling of the plunger 58. It will beunder-.'

stood that the volume. of this flame is sufficiently large to give astrong blast for this purpose as well as to reverberate on top of thepot 46, through the opening 45 shown in dotted lines in Fig. 4. Theplunger 52 is held in the head 57 by a leaf s ring 62. The amount ofglass flowing into t e pct 46 being carefully regulated and entering inregular pulsations, the motions ofthe plunger 58 are timedcorrespondingly andcarefully adjusted in extent so that the same amountof glass which flows into the pot 46, also flows out each time theplunger is lifted to supply the molds. Thus the level of glass in thepot remains constant,

which means that the head or pressure at the,

outlet is always the same, and the temperature conditions being alsoconstant, the

same charge of glass at the same consistency is invariably fed to themolds. to the size of the (article being made, the rate of flow of glassis easily regulated by adjusting the position of they wrist pin 42 (Fig.3), and the position of the bearing arm 51 in Figure 4.

Of course, the glass from the interrupter may be fed directly into themold when de- According sired, but I have illustrated in Figs. 4 and 5an improvement which consists in a conical chute 63 mounted in the frame64 so as to revolve freely and carrying a gear 65 which is driventhrough shaft 66 by gear 67 on the shaft 48. This cone stands overthemomentary position of the mold M in its place on the press.

Briefly the operation of the apparatus is as follows: 1

The glass having been properly mixed and melted in the combined meltingand pouring furnace 0t 37, it will be understood that the f glass ows ina continuous stream through the spout 38 into an interrupter chamber.Although the screw 34 tilting the furnace has an intermittentstep-by-step movement, there is a very slow movement and the changes ofpositions are so small that they do not interrupt the continuity-of theoutpouring The machines are so timed that the lifting of the plunger58-" slots 61 separates the issued glass. The issued glass is deliveredby the revolving cone 63 to the mold M, which happens to be placedthereunder. Tne plunger is gea ed" up to the press and consequently themotions are exact and the amount ofglass is exactly measured oil to suitthe molds being used.

The invention to be protected hereby is for a sub-combination in theglass feeding art of the hereinafter specified means for controlling theissue of glass from a feeder and is independent of the specific meansemployed to completely separate the issued glass from the glass in thefeeder, and furthermore is limited to means for adjusting the nearestposition of the plunger to the outlet, either, while the plunger ismoving, or, without changing the position of the plunger remote from theorifice, as claims broadly on a non-seating plunger, claims dirooted tovarying the lift of the plunger and claims directed to the mounting ofthepIunger and claims including elements other than the container withthe outlet and the plunger with its drive and control mechanism are madein the said original applica tion or other divisions thereof.

What is claimed asv the invention of T11110- nonn C. STEIMER is:

1. Apparatus for separating molten glass into mold charges, including acontainer for the glass having an outlet, an implement projecting intothe glass toward the outlet and mounted for movement toward and from theoutlet, means for periodically moving said implement toward and from theoutlet and means for adjusting the nearest position of said implement tothe outlet without phanging its position remote from such outet.

2. The combination with a container for molten glass having an outlet,of means.

adapted to be projected into and withdrawn iromsaid outlet, operatinmeans for periodically projecting said rst-named means into said outlet,and means for adjusting the. extent of projection into said outlet whilethe first named means are moving.

3. The combination with a container for. molten glass having ,an outlet,of means adapted to be projected into and withdrawn from said outletwhile out of contact there- .with, operating means for periodicallyprojecting said first-named means into said outlet, and means foradjusting the extent of projection into said outlet during the operationof said operating means.

4. Apparatus for separating molten glass -into mold char es, including acontainer 'for the glass havmg an outlet, an implement projecting intothe glass toward the outlet ing said implement toward and from theoutlet, and means operable while the apparatus is in operation foradjusting the neariast position of said implement tothe outet H v 5. Inan apparatus for separating molten glass into mold charges, thecombination of a container for the glass having an outlet, an implementprojecting into the glass to-. wards the outletand mounted for movementtowards and from the outlet, driving means forimparting such movement tosaid implement and operatively connected therewith, and means operablefor adjusting the nearest position of said implement to the outlet whilethe driving connection subsists.

6. In an apparatus of the class described,

the, combination of a receptacle for molten glass having a submergedoutlet, of a member adapted to reciprocate in,the glass axially of theoutlet and. adjacent thereto, means for reciprocating said member, andadjustable means for limiting the movement of the member toward theoutlet without changing the range of its movement away from the outlet.

' CHARLES M. STEIMER, Executor-0f Theodore 6. Steimer, Deceased.

